CN111821073A - Orthopedic implant system for monitoring activity posture and stress change thereof and monitoring method - Google Patents
Orthopedic implant system for monitoring activity posture and stress change thereof and monitoring method Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
- A61F2/4465—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1116—Determining posture transitions
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- A—HUMAN NECESSITIES
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/686—Permanently implanted devices, e.g. pacemakers, other stimulators, biochips
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6867—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive specially adapted to be attached or implanted in a specific body part
- A61B5/6878—Bone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
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Abstract
The invention relates to the field of medical instruments, in particular to an orthopedic implant system and a monitoring method for monitoring activity postures and stress changes thereof, which can flexibly monitor the current activity of an implanted part in real time, recognize the current activity posture according to current activity data, and obtain the stress sizes and changes corresponding to different activity postures by combining stress data. The scheme is summarized as acquiring activity data acquired by a gravity sensor, an acceleration sensor and a level meter in real time; identifying the current activity posture and the duration time of the current activity posture according to the activity data; acquiring stress data of a stress sensor in real time; obtaining the stress magnitude corresponding to the current activity attitude according to the current activity attitude and the stress data; and sending the activity posture, the activity posture duration time and the stress change data thereof to an external mobile terminal. Is suitable for orthopedic implants which can monitor the activity posture and the stress change thereof.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an orthopedic implant system and a monitoring method for monitoring activity postures and stress changes of the activity postures.
Background
The orthopedic plant products mainly comprise spinal products, trauma products, artificial joint products, neurosurgery products (skull repair titanium meshes) and the like. Common orthopedic implants include intervertebral fusion cage, orthopedic bone plates, nail-rod fixation systems, hip joint prostheses, knee joint prostheses, artificial vertebral bodies, intramedullary nails, elbow joint prostheses, wrist joint prostheses, shoulder joint prostheses, ankle joint prostheses, screws, titanium meshes, and the like.
The first artificial joint replacement was a prosthesis from which the Berlin physician Themistecles Luck successfully replaced ivory in 1890 for the knee of a 17 year old girl. He also developed the first artificial prosthesis of femoral head ball and socket acetabulum, successively applied with substitute materials such as ivory, aluminum, wood and glass. In 1938, Wiles used stainless steel as the joint material. Robert jones, gold foil was applied to the surface of the reconstructed femoral head. In 1962, Charnley utilized a metal femoral head and a plastic acetabular cup, and was fixed with bone cement (methacrylate) to obtain more satisfactory results. The metal part of the existing artificial joint uses titanium alloy or cobalt-chromium alloy which is the same as that of a steel plate, the plastic part uses high-crosslinking polyethylene, and alumina ceramic and zirconia ceramic are used. The biological prosthesis also adds hydroxyapatite or tantalum metal on the surface contacting with the bone to facilitate bone ingrowth.
At present, the cervical vertebra fusion cages used for basic research and clinical application are various, different classification systems exist according to different classification standards, and classification and quality classification of fusion cages can be roughly designed according to the shapes of the fusion cages. The fusion cage can be divided into a thread structure fusion cage and a non-thread structure fusion cage according to the morphological design classification of the fusion cage, wherein the thread structure fusion cage is in a horizontal cylinder shape or a thread shape, and the representative product is a BAK fusion cage. The non-thread structure fusion cage mainly comprises a cylindrical fusion cage and a box-shaped fusion cage, and the CornerStone-SR intervertebral fusion cage, WINGCage and the like are common. In addition, the external shape design is also provided with special fusers, such as a Plate Cage Benezech (PCB) for fixing the steel Plate and the fusers together, a Zero-notch interbody fusion Cage Zero-P for combining the front end of the fusers with a miniature steel Plate screw system, and a self-locking Zero-notch interbody fusion Cage ROC for combining a self-locking device with the interbody fusion Cage. The fusion cage can be divided into a metal fusion cage and a nonmetal fusion cage according to the material. At present, the metal fusion device is mainly made of titanium alloy; the nonmetal fusion device mainly comprises a carbon fiber fusion device, a polyether ether ketone (PEEK) fusion device, a degradable material fusion device, a composite material fusion device and the like. The PEEK material fusion cage is a more mainstream nonmetal fusion cage in the market at present, and has the advantages of lower elastic modulus, smaller stress shielding, lower sinking risk of the internal implant, high strength, high rigidity, good biocompatibility and capability of clearly displaying osteogenesis conditions by transmitting X-ray light. The degradable material fusion cage is made of polylactic acid, polyglycolic acid, hydroxyapatite/levorotatory polylactic acid composite material and the like, and the composite material fusion cage is made of two or more materials in a compounding manner so as to exert respective advantages or generate new action advantages and improve the defects of a single material, such as a nano hydroxyapatite/polyamide 66 composite material and the like.
Over the last 10 years, with the widespread use of artificial cervical disc replacement worldwide and the rapid development of spine non-fusion techniques, material science and biomechanics, many kinds of artificial cervical disc prostheses have emerged, such as Bryan, PrestigeST, prodic-C, Prestige LP, PCM, Discover, etc. Cervical disc replacement surgery has progressed from initial single-segment disc replacement to double-segment disc replacement, Hybrid disc replacement combining disc replacement with anterior cervical fusion surgery techniques. Through long-term clinical practice examination and development, the cervical disc replacement surgery (CDR) is considered to be an optional effective treatment scheme for treating cervical degenerative diseases at present, has the same or better clinical curative effect as the traditional ACDF surgery, and has the advantages of retaining the activity of the cervical vertebra of a patient, lower postoperative complications, short work delay time and the like.
At present, the global biomaterial has the largest demand for orthopedic and cardiovascular application products, and respectively accounts for 37.5 percent and 36.1 percent of the global biomaterial market; the orthopedic implant product mainly comprises a spine product, a wound product, an artificial joint product, a neurosurgery product (skull repairing titanium mesh) and the like. At present, joints, wounds and spines are three main-flow products of Chinese orthopedic medical instruments, and with the aging, the bone joints are the fields with the fastest speed increase in the future.
The defects of the prior art are that the current activity of an implanted part cannot be flexibly monitored in real time, the current activity posture can be identified according to the current activity data, and the stress magnitude and the change thereof corresponding to different activity postures can be calculated; the unhealthy posture of the implanted part cannot be early-warned and corrected; the data of the activity posture of the implanted part and the corresponding stress magnitude can not be collected, recorded and analyzed, and effective big data support is further provided for designing and optimizing the implanted part.
Disclosure of Invention
The invention aims to provide an orthopedic implant system and a monitoring method for monitoring activity postures and stress changes thereof, which can flexibly monitor the current activity of an implanted part in real time, recognize the current activity posture according to current activity data, obtain the stress sizes and changes thereof corresponding to different activity postures by combining stress data, early warn unhealthy postures, record the data in real time and further provide effective data support for designing and optimizing orthopedic implants.
The invention adopts the following technical scheme to realize the purpose, and the orthopedic implant system for monitoring the activity posture and the stress change thereof comprises a stress sensor, wherein the stress sensor is arranged on an orthopedic implant, a posture recognition module is arranged on the orthopedic implant and used for recognizing the activity posture of an implanted part, obtaining the stress magnitude corresponding to the activity posture of the implanted part by combining the stress data of the stress sensor, and sending the activity posture of the implanted part and the stress magnitude corresponding to the activity posture to an external mobile terminal.
Further, the gesture recognition module comprises an acceleration sensor, a gravity sensor, a level, a data transmission module and a data processing module, the stress sensor, the acceleration sensor, the gravity sensor and the level are all connected with the data processing module, the data processing module is connected with the data transmission module, the data processing module is used for recognizing the activity gesture of the implanted part according to the data of the gravity sensor, the acceleration sensor and the level, obtaining the stress size corresponding to the activity gesture of the implanted part by combining the stress data of the stress sensor, and sending the activity gesture of the implanted part and the stress size corresponding to the activity gesture to the external mobile terminal through the data transmission module.
Further, in order to improve data storage capacity, the gesture recognition module further comprises a data storage module, and the data storage module is connected with the data processing module.
Further, in order to expand the sensing range, the upper surface of the orthopedic implant is provided with stress sensors which are uniformly distributed.
Further, in order to expand the sensing range, the lower surface of the orthopedic implant is provided with stress sensors which are uniformly distributed.
Furthermore, in order to improve the accuracy of identifying the stress magnitude corresponding to the moving posture, the stress sensor is provided with a distinguishing mark, and the distinguishing mark is used for distinguishing the source of the stress data signal.
Further, the obtaining of the stress magnitude corresponding to the movement posture of the implantation portion includes: and establishing an X-Y rectangular coordinate system by taking the upper surface or the lower surface of the orthopedic implant as a plane according to the distinguishing mark arranged by the stress sensor, and then combining with the gesture recognition module to obtain the stress corresponding to the activity gesture of the implanted part.
The monitoring method of the orthopedic implant for monitoring the activity posture and the stress change thereof is applied to the orthopedic implant for monitoring the activity posture and the stress change thereof, and comprises the following steps:
acquiring activity data acquired by a gravity sensor, an acceleration sensor and a level meter in real time;
step (2), recognizing the current activity posture of the implanted part and the duration time of the current activity posture of the implanted part according to the activity data;
step (3), acquiring stress data of the stress sensor in real time;
step (4), obtaining the stress magnitude corresponding to the current implantation part activity posture according to the current implantation part activity posture and the stress data;
and (5) transmitting the activity posture of the implanted part, the duration time of the activity posture and the stress change data thereof to an external mobile terminal.
Further, the monitoring method for monitoring the orthopedic implant for monitoring the activity posture and the stress change thereof further comprises the following steps: and (6) comparing the stress corresponding to the current implantation part activity posture with the standard stress corresponding to the current implantation part activity posture, and if the stress corresponding to the current implantation part activity posture is larger than the standard stress corresponding to the current implantation part activity posture, sending a prompt to give an early warning.
And (7) recording and storing the activity posture of the implanted part, the activity posture duration, the corresponding stress magnitude of the activity posture and the change data of the activity posture in real time.
The orthopedic implant system for monitoring the activity posture and the stress change comprises a stress sensor, wherein the stress sensor is arranged on an orthopedic implant, a posture recognition module is arranged on the orthopedic implant and used for recognizing the activity posture of an implanted part, obtaining the stress magnitude corresponding to the activity posture of the implanted part by combining the stress data of the stress sensor, and sending the activity posture of the implanted part and the stress magnitude corresponding to the activity posture to an external mobile terminal for real-time monitoring, and also recording the data in real time through the external mobile terminal, thereby further providing effective big data support for designing and optimizing the orthopedic implant; the stress corresponding to the activity posture of the current implantation part can be compared with the standard stress corresponding to the activity posture of the current implantation part, if the stress corresponding to the activity posture of the current implantation part is larger than the standard stress corresponding to the activity posture of the previous implantation part, the current posture is an unhealthy posture, damage to the body is easy to cause, and a prompt is given to give an early warning.
Drawings
Fig. 1 is a structural diagram of a first embodiment of an orthopedic implant system for monitoring activity posture and stress change thereof according to the present invention.
Fig. 2 is a structural diagram of a second embodiment of the orthopedic implant system for monitoring the movement posture and the stress change thereof according to the present invention.
Fig. 3 is a structural diagram of a third embodiment of the orthopedic implant system for monitoring the movement posture and the stress change thereof according to the present invention.
Fig. 4 is a block diagram of the circuit structure of the orthopedic implant system for monitoring the activity posture and the stress change thereof according to the invention.
FIG. 5 is a flow chart of the method of monitoring orthopedic implants for monitoring movement postures and stress changes thereof according to the invention.
In the drawings, 100 is an interbody support body of the uncinate joint fusion cage, and 200 is a uncinate joint fusion part of the uncinate joint fusion cage; 10 is the upper section of the main nail, 20 is the lower section of the main nail, 30 is the elastic section, and 40 is the stress sensor; the structure comprises a plate body A1, a plate body B2, an elastic part 3, a mounting hole 4 and a stress sensor 5.
Detailed Description
Plant system in orthopedics of monitoring activity gesture and stress variation thereof, including stress sensor, stress sensor sets up on the plant in orthopedics, is provided with gesture recognition module on the plant in orthopedics, gesture recognition module is used for discerning the activity gesture of implanting the position to and combine stress sensor's stress data to obtain the stress size that implants the position activity gesture and correspond, and will implant the position activity gesture, stress size that the activity gesture corresponds sends to outside mobile terminal.
The gesture recognition module comprises an acceleration sensor, a gravity sensor, a level, a data transmission module and a data processing module, wherein the stress sensor, the acceleration sensor, the gravity sensor and the level are all connected with the data processing module, the data processing module is connected with the data transmission module, the data processing module is used for recognizing the activity gesture of the implanted part according to the data of the gravity sensor, the acceleration sensor and the level, obtaining the stress size corresponding to the activity gesture of the implanted part by combining the stress data of the stress sensor, and sending the stress size corresponding to the activity gesture of the implanted part and the activity gesture to an external mobile terminal through the data transmission module.
The gesture recognition module further comprises a data storage module, and the data storage module is connected with the data processing module.
In order to increase the induction range, the upper surface of the orthopedic implant can be provided with uniformly distributed stress sensors, the lower surface of the orthopedic implant can be provided with uniformly distributed stress sensors, the upper surface and the lower surface of the orthopedic implant can also be provided with uniformly distributed stress sensors, the stress sensors are provided with distinguishing marks, and the distinguishing marks are used for distinguishing the sources of stress data signals.
When the stress magnitude corresponding to the movement posture is calculated, an X-Y rectangular coordinate system is established by taking the upper surface or the lower surface of the orthopedic implant as a plane according to the distinguishing marks arranged on the stress sensors, each stress sensor corresponds to a corresponding coordinate in the coordinate system, and the specific position, direction and magnitude of a stress data source can be known by combining the arranged distinguishing marks.
When the implanted part moves once, the orthopedic implant system can monitor stress concentration or stress change in a specific direction of a specific distribution area, the movement direction of the cervical vertebra can be obtained according to the stress change, and the movement amount of the cervical vertebra can be obtained according to the stress change times and periods. The stress distribution of specific postures and activity conditions can be recorded; and then combining a gesture recognition module: the acceleration sensor can sense the implantation part in a moving state or a static state, can sense the moving direction in a space moving range, and can store data to the data storage module after being analyzed by the data processing module after sensing, wherein the time points of the movement in each direction are included; the gravity sensor and the level meter can measure the included angles of the horizontal plane, the coronal plane and the sagittal plane of the orthopedic implant on a three-dimensional space coordinate system, so that the posture of the orthopedic implant is obtained, the orthopedic implant and the human body implant part are fixed in position and have a certain included angle, and the orthopedic implant and the human body implant part are recalculated through data processing and can be converted into the space posture of the human body. Through the synergistic effect of the sensors, the posture (such as the degree of forward bending and the degree of backward bending), the static or moving direction of the implanted part at a certain moment can be obtained, and the stress conditions of the specific target position under different specific posture conditions can be obtained after the data correspond to the stress monitoring data.
Carry out real-time recording to duration, the cervical vertebra activity time of the different gestures of patient's postoperative cervical vertebra, can discern unhealthy gesture, if excessively low head and high pillow rest, carry out the early warning suggestion to unhealthy gesture, correct unhealthy gesture, make the patient keep a correct, the gesture that accords with cervical vertebra physiological condition, help bone joint healing.
The unhealthy posture is obtained by comparing the stress corresponding to the activity posture of the current implantation part with the standard stress corresponding to the activity posture of the current implantation part, and if the stress corresponding to the activity posture of the current implantation part is greater than the standard stress corresponding to the activity posture of the previous implantation part, the unhealthy posture is obtained.
And specific activity postures and duration time thereof can be recorded in real time, wherein the specific activity postures comprise 6 freedom degree of motion dimensions of anteflexion, retroflexion, left flexion, right flexion, left rotation and right rotation. The joint training can promote the recovery of the muscle strength and the neck movement of the patient after the operation and improve the common symptoms of stiffness, pain, numbness and the like after the operation. Before the orthopedic implant is implanted into a human body, postoperative joint rehabilitation training standard data can be stored in the recording memory module. When a patient does joint rehabilitation training, the orthopedic implant is connected with the corresponding APP through the Bluetooth, and the orthopedic implant system can record training action posture original data, and the activities of implants such as intervertebral disc prostheses and the like corresponding to 6 dimensions of anteflexion, retroflexion, left-right lateral flexion and left-right rotation respectively, and the activity amount, the activity range and the duration of the human joint in the 6 dimensions of anteflexion, retroflexion, left-right lateral flexion and left-right rotation. Then upload patient rehabilitation training's actual data to data processing module and standard data and contrast again, export data such as patient personal information, training action gesture primary data and actual data and contrast result in the mobile terminal APP through the bluetooth after obtaining the result again, the patient can in time know the recovered condition of oneself on the APP, also can carry out individualized rehabilitation training. Meanwhile, the rehabilitation doctor can also check corresponding data on the APP, and then timely assessment and guidance are carried out on the rehabilitation condition of the patient.
The chemical sensor can be arranged in the orthopedic implant to monitor the generation condition of wear debris in the orthopedic implant, the use condition of the orthopedic implant and the safety state (such as loosening, infection, bone absorption and the like) of the orthopedic implant.
The circuit structure block diagram of the orthopedic implant system for monitoring the activity posture and the stress change thereof is shown in fig. 4, the stress sensor, the gravity sensor, the acceleration sensor and the level meter are all connected with the data processing module, the data processing module is connected with the data transmission module, and the data processing module is used for identifying the activity posture of the current implantation part and the duration time of the activity posture of the current implantation part according to the gravity sensor, the acceleration sensor and the level meter, obtaining the stress magnitude corresponding to the activity posture of the current implantation part by combining the stress data of the stress sensor, and sending the activity posture, the duration time of the activity posture and the stress change data thereof to an external mobile terminal through the data transmission module.
According to the structure diagram of the first embodiment of the orthopedic implant system for monitoring the movement posture and the stress change thereof, as shown in fig. 1, an interbody support 100 and a uncinate joint fusion part 200 are provided, the left side and the right side of the interbody support 100 are respectively provided with the uncinate joint fusion part 200, a layer of fusion cage material is provided on the upper surface and the lower surface of the interbody support 100 and the uncinate joint fusion part 200, a layer of lacuna is provided below the fusion cage material, stress sensors are uniformly distributed in the lacuna, and a posture recognition module is provided in the interbody support 100.
The structure diagram of the second embodiment of the orthopedic implant system for monitoring the activity attitude and the stress change thereof is shown in fig. 2, and comprises a main nail upper section 10, an elastic section 30 and a main nail lower section 20 which are axially connected, wherein a stress sensor 40 is arranged in the elastic section 30, the stress sensor 40 is arranged on the main nail upper section 10 and the main nail lower section 20, and an attitude identification module is arranged in the elastic section 30.
According to the structure diagram of the third embodiment of the orthopedic implant system for monitoring the activity posture and the stress change of the activity posture, as shown in fig. 3, a plate body A1 and a plate body B2 are in butt joint through an elastic piece 3, a stress sensor is arranged in the elastic piece 3, mounting holes 4 are formed in the plate body A1 and the plate body B2, the stress sensor is arranged in the mounting hole 4, the stress sensors which are uniformly distributed are arranged on the plate body A1 and the plate body B2 and are provided with distinguishing marks, and a posture recognition module is further arranged in the elastic piece 3.
The orthopedic implant system for monitoring the activity posture and the stress change thereof comprises but is not limited to the embodiment.
According to the orthopedic implant system for monitoring the activity posture and the stress change of the orthopedic implant system, the stress sensor can be arranged on the surface of the orthopedic implant, or in an interlayer below the surface, or in the orthopedic implant according to the actual situation.
The method for monitoring the orthopedic implant for monitoring the activity posture and the stress change thereof has a flow chart as shown in fig. 5, and comprises the following steps:
103, acquiring stress data of the stress sensor in real time;
104, obtaining the stress magnitude corresponding to the current implantation part activity posture according to the current implantation part activity posture and the stress data;
and 105, transmitting the activity posture of the implanted part, the duration time of the activity posture and the stress change data thereof to an external mobile terminal.
The monitoring method for monitoring the orthopedic implant for monitoring the activity posture and the stress change thereof can also comprise the following steps:
and 106, comparing the stress corresponding to the current implantation part moving posture with the standard stress corresponding to the current implantation part moving posture, and if the stress corresponding to the current implantation part moving posture is larger than the standard stress corresponding to the current implantation part moving posture, sending a prompt to give an early warning.
And 107, recording and storing the activity posture of the implanted part, the activity posture duration, the corresponding stress magnitude of the activity posture and the change data of the activity posture in real time.
In conclusion, the invention can flexibly monitor the current activity of the implanted part in real time, recognize the current activity posture according to the current activity data, obtain the stress magnitude and the change thereof corresponding to different activity postures by combining the stress data, early warn unhealthy postures, record the data in real time and further provide effective big data support for designing and optimizing the plants in the orthopedics department.
Claims (10)
1. Plant system in orthopedics of monitoring activity gesture and stress variation thereof, including stress sensor, stress sensor sets up on plant in orthopedics, its characterized in that is provided with gesture recognition module on the plant in orthopedics, gesture recognition module is used for discerning the activity gesture of implanting the position to and combine stress sensor's stress data to obtain the stress size that implants the position activity gesture and correspond, and will implant the position activity gesture, stress size that the activity gesture corresponds sends to outside mobile terminal.
2. The orthopedic implant system for monitoring activity postures and stress changes thereof according to claim 1, wherein the posture recognition module comprises an acceleration sensor, a gravity sensor, a level meter, a data transmission module and a data processing module, the stress sensor, the acceleration sensor, the gravity sensor and the level meter are all connected with the data processing module, the data processing module is connected with the data transmission module, and the data processing module is used for recognizing the activity posture of the implanted part according to the data of the gravity sensor, the acceleration sensor and the level meter, obtaining the stress magnitude corresponding to the activity posture of the implanted part by combining the stress data of the stress sensor, and sending the activity posture of the implanted part and the stress magnitude corresponding to the activity posture to an external mobile terminal through the data transmission module.
3. The orthopedic implant system for monitoring activity posture and stress variation thereof according to claim 2, wherein the posture recognition module further comprises a data storage module, and the data storage module is connected with the data processing module.
4. The orthopedic implant system for monitoring activity postures and stress changes thereof according to claim 2, wherein the orthopedic implant upper surface is provided with stress sensors which are uniformly distributed.
5. The orthopedic implant system for monitoring activity postures and stress changes thereof according to claim 2, wherein the orthopedic implant lower surface is provided with uniformly distributed stress sensors.
6. The orthopedic implant system for monitoring activity postures and stress changes thereof according to claim 4 or 5, characterized in that the stress sensor is provided with a distinguishing mark for distinguishing the sources of stress data signals.
7. The orthopedic implant system for monitoring the activity postures and the stress changes thereof according to claim 6, wherein the obtaining of the stress magnitude corresponding to the activity posture of the implantation part comprises: and establishing an X-Y rectangular coordinate system by taking the upper surface or the lower surface of the orthopedic implant as a plane according to the distinguishing mark arranged by the stress sensor, and then combining with the gesture recognition module to obtain the stress corresponding to the activity gesture of the implanted part.
8. The method for monitoring the orthopedic implant for monitoring the activity posture and the stress change thereof is applied to the orthopedic implant for monitoring the activity posture and the stress change thereof according to any one of claims 2 to 7, and is characterized by comprising the following steps:
acquiring activity data acquired by a gravity sensor, an acceleration sensor and a level meter in real time;
step (2), recognizing the current activity posture of the implanted part and the duration time of the current activity posture of the implanted part according to the activity data;
step (3), acquiring stress data of the stress sensor in real time;
step (4), obtaining the stress magnitude corresponding to the current implantation part activity posture according to the current implantation part activity posture and the stress data;
and (5) transmitting the activity posture of the implanted part, the duration time of the activity posture and the stress change data thereof to an external mobile terminal.
9. The method for monitoring orthopedic implants for active postures and stress changes thereof as claimed in claim 8, further comprising:
and (6) comparing the stress corresponding to the current implantation part activity posture with the standard stress corresponding to the current implantation part activity posture, and if the stress corresponding to the current implantation part activity posture is larger than the standard stress corresponding to the current implantation part activity posture, sending a prompt to give an early warning.
10. The method for monitoring orthopedic implants for active postures and stress changes thereof as claimed in claim 8, further comprising:
and (7) recording and storing the activity posture of the implanted part, the activity posture duration, the corresponding stress magnitude of the activity posture and the change data of the activity posture in real time.
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| CN111821073B (en) | 2023-02-28 |
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